I onced tried to liberate csa memory (of an old stc that was inactive) with a Mainview product.
Result: IPL at 10:00am in a nationwide organization. That's 10 years ago. Never touch that again. On Wed, Nov 4, 2015 at 3:20 PM, Rob Schramm <rob.schr...@gmail.com> wrote: > One the best sysprogs I know attempted to free some storage SQA / CSA due > to a creeping storage condition. There was a shory pause followed by some > expletives and an immediate IPL of the system. I wouldn't attempt it on > any system I cared about unless it was to attempt to avoid an impending > IPL. > > Rob Schramm > > On Sat, Oct 31, 2015, 10:47 AM Martin Packer <martin_pac...@uk.ibm.com> > wrote: > > > Right. And coming to this late... > > > > SMF 78-2 has all the numbers you'd usually need on this. My standard > > reporting generates useful stuff on this - but generally I don't bore my > > customers with it. If it's exciting, however, ... :-) > > > > Quite often I see SQA oversized leaving unusable 24- or 31-bit SQA. (Also > > oversized CSA, but that's a different matter.) > > > > Cheers, Martin > > > > Martin Packer, > > zChampion, Principal Systems Investigator, > > Worldwide Cloud & Systems Performance, IBM > > > > +44-7802-245-584 > > > > email: martin_pac...@uk.ibm.com > > > > Twitter / Facebook IDs: MartinPacker > > Blog: > > https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker > > > > > > > > From: Peter Relson <rel...@us.ibm.com> > > To: IBM-MAIN@LISTSERV.UA.EDU > > Date: 31/10/2015 13:56 > > Subject: Re: Releasing Orphan Storage without IPL > > Sent by: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> > > > > > > > > >Remember that CSA and ECSA can overflow to SQA and ESQA, so you have > > >more air in you (E)CSA than the 2% and 3% and this might help you > > >survive until the next scheduled IPL. > > > > Actually, it's the other way around, as I think of it. > > > > CSA can be converted into SQA. If a request to obtain storage from SQA > > cannot find it from the defined SQA, the system may convert CSA to > satisfy > > > > the request. > > > > It will not do the reverse. > > > > This is why some customers will underconfigure SQA and overconfigure CSA. > > > > Peter Relson > > z/OS Core Technology Design > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > > > > > > > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- "I am as you, in you, for you. One as you in all, as all, forever. My call is your call." ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
